Pathogenicity da virulence na kwayoyin. Virulence - shi ...

A jikin mutum shi ne gida don game da 100 trillionov kwayoyin. Masana kimiyya na yau ne kawai a yanzu Mafi sani ga yadda wadannan hadaddun al'ummomi hulɗa tare da mutum. Su shafi aiwatar da narkewa, da rigakafi da kuma tsarin yiwu ma a kan shafi tunanin mutum da alheri. Duk da haka, ba duka kwayoyin iya rayuwa tare da jikin mutum a zaman lafiya da jituwa. Yana kira pathogenic kananan kwayoyin da cewa zai iya sa cuta a cikin shuke-shuke, da dabbobi, ko kwari. Microbes bayyana su pathogenicity amfani virulence. Saboda haka, abin da yake cikin virulence?

A ra'ayi na virulence

Virulence - shi ne wani ajali don bayyana mataki na pathogenicity na wani microbe. Saboda haka, determinants na virulence na pathogen ne kuma wani daga cikin kwayoyin, biochemical ko tsarin fasali da damar yi wa cutar.

Dangantaka tsakanin rundunar da pathogen ne ko da yaushe tsauri, domin kowane iya canja aiki da kuma ayyuka na sauran. A sakamakon dangantaka dogara a kan virulence na pathogen da kuma zumunta mataki na adawa ko laulayi na rundunar. An muhimmiyar rawa aka taka leda tasiri na m sunadaran da kwayoyin.

Virulence dalilai kai tsaye alaka da kaddarorin cewa ba da damar cutarwa microorganisms samun a ko a jiki na rundunar da kuma dalilin cutar. Wadannan sun hada da kwayan gubobi da taimakawa ga pathogenicity.

muhimmanci Concepts

Invasiveness - wannan basira a cikin nama. Yana hada sunadaran don yiwu mulkin mallaka da kuma samar da extracellular abubuwa da taimako zuwa ga yiwuwar mamayewa da kuma kubuta ko shawo kan wasu m sunadaran.

Toksogennost - ikon excrete gubobi. Kwayoyin cutar na iya samar da iri biyu gubobi: endotoxins da exotoxins. Exotoxins saki daga kwayan Kwayoyin da inganta ci gaban da kwayoyin. Endotoxins ne cell abu.

Kwayan gubobi, duka biyu narkewa da cell-hade, za a iya hawa da jini da kuma Lymph nama da kuma sa cytotoxic effects a yankunan m daga farko batu na shigar azzakari cikin farji. Wasu kwayan gubobi iya haifar da mazauna su shiga a cikin mamayewa.

Pathogenicity da virulence na microorganisms

Pathogenicity - da ikon da kwayoyin zuwa haifar da cuta. Wannan ikon ne a kayyade bangaren na pathogen, wanda ya cũtar da rundunar gefe. Domin opportunistic pathogens, wannan ikon sa cuta ba m. Pathogens iya bayyana mai fadi da kewayon virulence.

Virulence - wani tunanin da ke inextricably nasaba da manufar pathogenicity. A mataki na virulence na pathogen ne yawanci dangantaka da ikon rubanya a cikin rundunar da kuma iya dogara a kan wasu dalilai. virulence dalilai da taimako zuwa ga pathogenicity, watau taimaka wa sa cuta.

pathogens

Mutane da yawa sun sha kõma da hankali ga daban-daban Sanarwa daga samfurin tallace-tallace da suke da'awar cewa kashe 99% na germs. Pathogen - wani lokaci amfani da su bayyana kananan kwayoyin (kwayoyin da ƙwayoyin cuta), da haddasa cututtuka daban-daban. A nazarin halittu terminology, shi ne kuma aka sani da causative wakili. Akwai da dama iri pathogens cewa sa cututtuka daban-daban kama daga na kowa sanyi da kuma kawo karshen ciwon daji.

Pathogenic microorganisms shafi wani mutum a hanyoyi da dama, dangane da virulence. Virulence - wani lokaci amfani da su bayyana tasiri na musamman pathogen. A mafi virulent pathogen ya, da more shi zai yi mummunan tasiri a kan mutum kiwon lafiya.

Dalilai na virulence

Virulence dalilai ne siffofin pathogens cewa sanin abin da ya mallaka pathogen virulence. Da more, da mafi girma da alama cewa shi zai zama dalilin da cutar. Wadannan dalilai ba wani amfani a tafiyad da mutum rigakafi da tsarin, da kuma more, da mafi hallakaswa su iya zama.

Akwai da dama daban-daban na virulence abubuwan da zai iya zama ba ko ba ya nan, a kuma wani pathogen: da dalilai na mulkin mallaka, enterotoxins da hemolysin. Virulence - shi ne mai gwada yawa hali, wakiltar mataki na cuta ya sa ta a kananan kwayoyin. Wannan yanayin, wanda ya nuna hulda tsakanin wani pathogen da wani m. Virulence ne yawanci dangantaka da ikon da pathogen radiyo. Wannan na iya ma ya dogara ne a kan m da kuma muhalli dalilai.

A kwayan pathogen ana ayyana a matsayin wani kwayoyin da ke iya haddasa ciwo. Its ikon sa cutar da ake kira pathogens. A virulence na kananan kwayoyin ne kai tsaye dogara a kan yanayin kamuwa da cuta da kuma shi ne mai nuna alama na tsanani da cuta da cewa shi sa.